Patent Application
20220226833
The present disclosure relates to a device for crushing rocks, and more specifically to a rock crusher with a primary and auxiliary crushing mechanism.
Rock crushers are known in the art. They are apparatuses designed to reduce large rocks into smaller rocks, gravel or dust. Standard rock crushers, such as a jaw crusher and gyratory crusher, function by placing material between two solid surfaces, applying a force that causes one or more of the surfaces to move, and in turn fracturing the material. For both jaw crushers and gyratory crushers, the chamber in which material is placed progressively narrows in a downward direction to allow larger pieces of material to be progressively made smaller until a desired size is reached.
For these crushers, a compression force is applied to the material within the crushing chamber to stress the material, ultimately causing it to fracture. The stress needed to fracture material will vary with the size and material to be crushed. Certain types and sizes of rock will require a high compression force to reach the stress threshold needed to fracture the rock, and therefore these rock crushing apparatus need to withstand a high level of stress as well. Rock crushing, whether crushing material with a high-stress fracture point or an abundance of material, can result in high-energy demands and significant amounts of time to continually provide the compression force needed to fracture rocks.
Thus, there is a need for an apparatus that, through additional or alternative force, can reach or surpass fracture inducing stress levels more easily and efficiently than those currently used in the industry.
Accordingly, it is an object of the present disclosure to provide a rock crushing device that includes a housing with a plurality of walls defining a chamber that has an upper inlet and a lower outlet. At least one of the walls is movable relative to another wall to define a primary compression assembly for crushing rocks within the chamber via mechanical force. There is an auxiliary crushing assembly connected with at least one of the walls to deliver vibrations to the wall for crushing rocks within the chamber via a vibratory force. The rock crushing device is operable via the primary compression assembly and auxiliary assembly together, or via the primary assembly alone with the auxiliary assembly force independently applied as needed. Preferably, the auxiliary crushing assembly includes one of a piezoelectric and hydraulic device.
In one embodiment, the housing has a generally rectangular configuration and includes a first pair of parallel spaced side walls and a second pair of side walls arranged perpendicular to the first pair. At least one of the second pair of side walls is movable relative to the other side wall between a receiving position and crushing position. For the receiving position, the second pair of side walls are spaced by a first distance, and for the crushing position, the second pair of side walls are spaced by a second distance less than the first distance. The auxiliary crushing assembly is connected with the second pair of side walls. Preferably, the movable side wall is spaced a greater distance at the top than at the bottom.
In another embodiment, the auxiliary crushing assembly provides variable frequency vibration forces, including high and low frequency forces, and both of the two opposed side walls are movable.
In yet another embodiment, the housing has a generally circular configuration including an inner wall and an outer wall concentrically arranged in spaced relation relative to the inner wall. In this embodiment, the inner chamber is defined between the inner and outer walls, and the inner wall is movable relative to the outer wall. Preferably, the inner wall has a conical configuration and the outer wall has an inner diameter at a top portion greater than an inner diameter at a bottom portion. An auxiliary crushing assembly is connected with both walls or one wall.
Other objects and advantages of the disclosure will become apparent from a study of the following specification when viewed in the light of the accompanying drawing, in which:
The present disclosure is directed toward a rock crusher having primary and auxiliary rock crushing mechanisms. The primary mechanism provides an initial rock crushing compression force and the auxiliary mechanisms provides vibratory force to increase the peak stress of the rock. The term “rock” is used to describe material that is crushed by the rock crushers disclosed herein. It will be understood by those with skill in the art that other material that can be crushed, fractured, or otherwise reduced in size can be used with the rock crushers.
Referring first to
In addition to the compression force provided from pivoting the pivotable wall toward the stationary wall, there is an auxiliary crushing assembly 24, which includes a pad of material 26 that provides a low frequency hydraulic force. As the primary crushing assembly 4 is operated via the rotary device 18, and the rock-crushing surfaces 12 are in contact with rocks, the hydraulic pad 26 is operated, causing vibration of the rock-crushing surfaces, which in turn increases the peak stress applied to the rocks. This results in rock crushing that requires less time, less energy, and less stress on the rock crusher 2. Though a hydraulic pad is used with the embodiment of
Referring now to
The embodiment shown in
In addition to that primary rock crushing assembly 204, the embodiment shown in
Although the above description with reference to particular embodiments it is to be understood that these embodiments are merely illustrative of the principles and applications of the present disclosure. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised and employed without departing from the spirit and scope of the present disclosure.
